Venturi apparatus

A device for introducing air to a liquid to form aerated liquid, the device comprising:

• a liquid-receiving section extending from a top of the device and providing a liquid-receiving chamber configured to be in fluid communication with the atmosphere through the top of the device, the liquid-receiving chamber having a first cross-sectional area at the top of the device and a second cross-sectional area displaced from the top of the device, the second cross-sectional area being smaller than the first cross-sectional area;
• a transfer section extending from the liquid-receiving section and providing a transfer channel with a constant cross-sectional area;
• and
• a mixing section providing:
• a mixing passageway in fluid communication with the transfer channel to receive liquid from the transfer channel;
• and
• an air intake in fluid communication with the mixing passageway;
• wherein the mixing section is configured such that air will be drawn through the air intake and into the liquid to form the aerated liquid in response to the liquid flowing through the mixing passageway;
• and
• wherein the air intake extends from the periphery of the device to a midsection of the mixing passageway.

A device for introducing air to a liquid to form aerated liquid, the device comprising:

• a liquid-receiving section extending from a top of the device and providing a liquid-receiving chamber configured to be in fluid communication with the atmosphere through the top of the device, the liquid-receiving chamber having a first cross-sectional area at the top of the device and a second cross-sectional area displaced from the top of the device, the second cross-sectional area being smaller than the first cross-sectional area;
• a transfer section extending from the liquid-receiving section and providing a transfer channel with a constant cross-sectional area;
• and
• a mixing section providing:
• a mixing passageway in fluid communication with the transfer channel to receive liquid from the transfer channel;
• and
• an air intake in fluid communication with the mixing passageway;
• wherein the mixing section is configured such that air will be drawn through the air intake and into the liquid to form the aerated liquid in response to the liquid flowing through the mixing passageway;
• and
• wherein the air intake comprises two sidearm passageways.

A device for introducing air to a liquid to form aerated liquid, the device comprising:

• a liquid-receiving section extending from a top of the device and providing a liquid-receiving chamber configured to be in fluid communication with the atmosphere through the top of the device, the liquid-receiving chamber having a first cross-sectional area at the top of the device and a second cross-sectional area displaced from the top of the device, the second cross-sectional area being smaller than the first cross-sectional area;
• a transfer section extending from the liquid-receiving section and providing a transfer channel with a constant cross-sectional area;
• and
• a mixing section providing:
• a mixing passageway in fluid communication with the transfer channel to receive liquid from the transfer channel;
• and
• an air intake in fluid communication with the mixing passageway;
• wherein the mixing section is configured such that air will be drawn through the air intake and into the liquid to form the aerated liquid in response to the liquid flowing through the mixing passageway;
• and
• wherein the mixing section is configured such that the mixing passageway is cylindrical.

A device for introducing air to a liquid to form aerated liquid, the device comprising:

• a liquid-receiving section extending from a top of the device and providing a liquid-receiving chamber configured to be in fluid communication with the atmosphere through the top of the device, the liquid-receiving chamber having a first cross-sectional area at the top of the device and a second cross-sectional area displaced from the top of the device, the second cross-sectional area being smaller than the first cross-sectional area;
• a transfer section extending from the liquid-receiving section and providing a transfer channel with a constant cross-sectional area;
• and
• a mixing section providing:
• a mixing passageway in fluid communication with the transfer channel to receive liquid from the transfer channel;
• and
• an air intake in fluid communication with the mixing passageway;
• wherein the mixing section is configured such that air will be drawn through the air intake and into the liquid to form the aerated liquid in response to the liquid flowing through the mixing passageway;
• and
• wherein the mixing section provides at least one of a floor or a ceiling for the mixing passageway.